The territorial sea and the contiguous zone are two maritime zones which overlap with each other. They are both measured from the same baselines and in both maritime zones the coastal State exercises an element of sovereignty or control. The contiguous zone is an extension of the coastal State’s powers over the territorial sea because when the coastal State enforces its customs, fiscal, immigration, or sanitary laws or regulations, it does so with regard to infringements of these laws carried out within the coastal State’s territory or territorial sea. Both...